2018948980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1134241}}^1$

素因数の和:1134339

約数の個数: 24

約数和(自身を含む): 4287434760

約数和(自身を除く): 2268485780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1134241, 2268482, 4536964, 5671205, 11342410, 22684820, 100947449, 201894898, 403789796, 504737245, 1009474490, 2018948980]

約数ペア:

[(1, 2018948980), (2, 1009474490), (4, 504737245), (5, 403789796), (10, 201894898), (20, 100947449), (89, 22684820), (178, 11342410), (356, 5671205), (445, 4536964), (890, 2268482), (1780, 1134241)]